CN85107565A

CN85107565A - Can obliquely hang the crane of weight

Info

Publication number: CN85107565A
Application number: CN198585107565A
Authority: CN
Inventors: 哈罗尔德·E·伍德罗
Original assignee: Morgan Construction Co
Current assignee: Siemens Industry Inc
Priority date: 1984-10-26
Filing date: 1985-10-17
Publication date: 1986-07-02
Also published as: JPH0657600B2; BR8505344A; EP0180395A1; JPS61106400A

Abstract

A kind of crane, this crane includes supporting frame, can aim at the position of weight from the top.Coaster is housed on the supporting frame, can moves back and forth between two endpoint locations putting in and withdraw, corresponding with the rising and the lowering position of load respectively.Coaster is equipped with the lifting track adjusting wheel.Flexible hoist cable one end that is tightened up is fixed on the framework, and then, this hoist cable other end supports via track adjusting wheel, walks around from track adjusting wheel and hangs down, and carries out removable jew with the load weight and connects.When coaster when it puts in and withdraws between two end positions crank motion, load is sling with respect to horizontal direction bevelled route or is fallen along one.

Description

Can obliquely hang the crane of weight

What the present invention related generally to is crane and similar means, particularly about slinging along the route that is inclined relative to horizontal or a kind of crane of the weight that descends.

Weight is sling along oblique path or is fallen, and the application part of a lot of needs is arranged in industry.Particularly for the steel rolling mill of rolling bar and tubing.There, mill support, work roll, driven roller and motor etc. are frequent and horizon angle lapping at 45 is oblique.Generally, the installation lifting of these mill assemblies is being prolonged the bevelled track or similar means carries out.Yet such track is trouble inconvenience, and it makes inaccessible mill assembly safeguard and load and unload.

The present invention has exempted the defective in the former skill, when prolonging the bevelled road when slinging or descend weight, without any need for inclined plane or similar means.

In suitable scheme of the present invention (this paper back will make a more detailed description), oblique lifting is by adopting a supporting frame that is arranged on the weight top to be accomplished.The delivery coaster is housed on the framework, the delivery coaster can its advance and two final positions returning between move back and forth, from top corresponding with the rising and the lowering position of weight load respectively.Cause on the delivery coaster lifting track adjusting wheel is housed less, there is flexible hoist cable one end that is tightened up to be fixed on the supporting frame, then, this hoist cable is via track adjusting wheel, have flexible hoist cable one end that is tightened up to be fixed on the supporting frame, then, this hoist cable supports via track adjusting wheel, walk around and be folded down from track adjusting wheel, the other end articulates with the suspention that the weight that is hung carries out removable jew.When the delivery coaster marches forward terminal point when moving together with the tensioning hoist cable weight that plays by returning terminal point, the overhang of tensioning hoist cable shortens gradually, and this just makes weight prolong a relative horizon bevelled route to rise.Conversely, also promptly play weight by advancing terminal point when returning the end points retraction movement when delivering coaster together with the tensioning hoist cable, weight is then prolonging same bevelled road and is descending.

More favourable way is, the delivery coaster is prolonging the supporting frame on even keel and moving, and weight is sling or the path of falling can be stretched from the horizontal by 45.

Useful is to adopt three tensioning hoist cables, moves on track adjusting wheel separately respectively, and the overhang of three hoist cables arranges that in the space triangularity center of gravity of the weight that is hung then is positioned within the triangle of determining like this.

Now, will be by with reference to the accompanying drawings the present invention being made a more detailed description.

Fig. 1 is the plan view from above according to the designed crane of the present invention.

Fig. 2 is along 2-2 cutaway view that cutting line is got among Fig. 1.

Fig. 3 analyses and observe along the amplification that 3-3 cutting line among Fig. 1 is got.

Fig. 4 is the cutaway view of being got along 4-4 cutting line among Fig. 2 of bowing.

Now, referring to accompanying drawing, be illustrated as one by the designed crane of the present invention, it is positioned on the weight " L " of handling of will being sling, here, weight is a roll chuck on the mill 12, and it is inserted into support 10 the insides from the horizontal by 45.The mill of this pattern is used among the sub-thread Rolling Production of rod iron or other similar products.

The parts of crane are contained on the supporting frame 14, and framework 14 is by edge-on channel-section steel 16 and two end supports channel-section steel 18a, the mutual rigidity of 18b and center support bar 18c in conjunction with and constitute.The supporting frame bottom has column 20, and roller 22 is housed on it, is arranged in operation on the track 24, and like this, supporting frame can move, and corresponding weight L determines the position from the top.Guided way 26 is housed on the inframarginal of edge-on channel-section steel 16, and guided way 26 limits the delivery coaster and presses the motion of the horizontal path shown in 28 lines among Fig. 2.Two

axles

32,34 before and after the delivery coaster has are equipped with road wheel 36 on axle head, the delivery coaster can be walked along guided way 26.Delivery coaster rear axle on, be loaded with a pair of lifting track adjusting wheel free to rotate, in this example, usefulness be trough of belt pulley 38a and 38b.On the front axle of delivery coaster, similarly also be loaded with an independent trough of belt pulley 38c, the flexible bendable hoist cable that is tightened up, metallic cable 40a for example, 40b, and 40c one end is fixed on the center support channel-section steel 18c of crane supporting frame rope 40a, 40b, stretch separately with 40c, by pulley 38a, 38b, with walk around on the 38c and be folded down, the hoist cable lower end that these are folded down connects hooks 42 by adjustable swivel nut assembly 44.

Suspension hook 42 has articulated a hoisting accessory 46, and this annex has the external part 48 that is folded down.Can adopt usual way, for example the external part that dangles of weight L and hoisting accessory be carried out removable jew and connect with bolt, bearing pin etc.Pulley 38a, the layout of 38b and 38c sees most clearly from Fig. 4, and its layout will make hoist cable 40a, and 40b, the overhang of 40c are positioned on leg-of-mutton each angle of reference, and the center of gravity 50 of weight L then is positioned among this triangle.

Usually the driving operating method that adopts is such, adopt a piston cylinder element 52, the one client link is on the end slot steel 18a of supporting frame, the other end then is bound up on the delivery coaster on opposite, and piston cylinder element 52 moves back and forth the delivery coaster between its retracted position (solid line position illustrated in figures 1 and 2) and extended position (dotted line position illustrated in figures 1 and 2).Retracted position dips from top corresponding weight L's, and extended position is then from the raised position of top corresponding weight L.

Each parts of crane move as follows: when promoting weight L, supporting frame 14 at first moves along track 24, from top aligning weight.Delivery coaster 30 is return and is made hoist cable 40a, 40b, the overhang of 40c increases, like this, suspension hook 42 just reached weight near.At this moment, hoisting accessory 46 and weight are connect, this hoisting accessory and suspension hook are tied successively again, then, piston cylinder unit 52 stretches, and promotes the delivery coaster and moves from left to right, as shown in Figure 2.Since moving of delivery coaster, hoist cable 40a, 40b, the overhang of 40c shortens gradually, because these hoist cables all are to walk around pulley 38a, 38b, 38c's separately.Net result is that load L is raised along the path " P " from the horizontal by 45.In case weight and its support 10 are separated from, then supporting frame can move to another place along track 24, places weight there.By the retraction movement of piston cylinder element 52, load then can be rolled back in the support by lifting along same route P and go.

In the process of slinging and descending of weight, can revise any small angular deviation by Adjusting bolt Adjusting screw assembly 44, particularly when this weight is hung in its support, more need.

For adapting to special needs, yes can change for the number of hoist cable.In some cases, general hoist cable just can meet requirements.Any suitable flexible flexible hoist cable comprises that cable and chain cable can be used to replace metallic cable.Also can drive operation, for example, can adopt electric motor driven level to cooperate with damper brake, be installed in and order about delivery coaster crank motion on the supporting frame of crane to screw impeller with other method.No matter in any situation, the lifting of weight or hang down the inclined plane that all needn't seek help from trouble inconvenience.Therefore, make support 10 can leave sufficient space on every side, be easy to the approaching work of service personnel.

Claims

1, a kind ofly be used for prolonging the road that favours horizontal direction through slinging and falling the crane of weight, described crane comprises: be used for aiming at above weight the crane supporting frame that weight is determined the position; The delivery coaster is housed on the framework, and the delivery coaster moves back and forth at withdrawal endpoint location and putting between the endpoint location along framework, respectively dipping and raised position from top corresponding weight; Rotating guiding hanging wheel is housed on the described delivery coaster, flexible hoist cable one end that is tightened up is fixed on the aforesaid supporting frame, and then, the other end of this hoist cable is walked around from aforementioned rotating guiding hanging wheel, be folded down from the guiding hanging wheel, carry out removable jew with aforesaid weight and connect; Operation scheme then is to order about aforesaid delivery coaster at aforesaid withdrawal endpoint location with put between the endpoint location and move back and forth.

2, equipment as claimed in claim 1, characteristics is, described delivery coaster on described supporting frame, carry out level to crank motion.

3, equipment as claimed in claim 2, characteristics are that also described weight is hung and rises and fall the path of being passed through is from the horizontal by 45.

4, as claim 1 or 2 or 3 described equipment, characteristics are that also described crane supporting frame can move on guide rail.

5, equipment as claimed in claim 1, characteristics have been that three described tensioning hoist cables stretch from three described guiding hanging wheels and have walked around and be folded down, the overhang of these three tensioning hoist cables is regarded 3 layouts as from overlooking, and lays respectively on leg-of-mutton each angle.